Fortran - Re: Bounds Check Overhead

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Re: Bounds Check Overhead

Jan Vorbrüggen

2006-05-29, 8:05 am

> The design decisions made in Ada are always in favor of 1, maybe at the
> cost of some idioms. So in Ada modifying the index of a loop isn't a
> "bounded error" as it seems to be in Fortran, it is a compile-time error.

My take is that current Fortran enables a compiler to behave in a similar way
_if_ your program obeys certain rules - I suspect the restrictions implemented
by F (a "modern" subset supported, at least, by a mode in g95) fulfil these
rules. However, the desire to support older source code makes it impossible
to remove the "escape routes" from the standard and to mandate the necessary
restrictions for the language.

Jan

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